mirror of
https://github.com/matrix-org/dendrite.git
synced 2025-12-20 21:33:19 -06:00
142 lines
4.3 KiB
Go
142 lines
4.3 KiB
Go
// Copyright 2017-2018 New Vector Ltd
|
|
// Copyright 2019-2020 The Matrix.org Foundation C.I.C.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package postgres
|
|
|
|
import (
|
|
"context"
|
|
"database/sql"
|
|
|
|
"github.com/matrix-org/dendrite/internal"
|
|
"github.com/matrix-org/dendrite/internal/sqlutil"
|
|
"github.com/matrix-org/gomatrixserverlib"
|
|
)
|
|
|
|
const queueSchema = `
|
|
CREATE TABLE IF NOT EXISTS federationsender_queue_pdus (
|
|
-- The transaction ID that was generated before persisting the event.
|
|
transaction_id TEXT NOT NULL,
|
|
-- The domain part of the user ID the m.room.member event is for.
|
|
server_name TEXT NOT NULL,
|
|
-- The JSON NID from the federationsender_queue_json table.
|
|
json_nid BIGINT NOT NULL
|
|
);
|
|
|
|
CREATE UNIQUE INDEX IF NOT EXISTS federationsender_queue_pdus_event_id_idx
|
|
ON federationsender_queue (event_id, server_name);
|
|
`
|
|
|
|
const insertQueueSQL = "" +
|
|
"INSERT INTO federationsender_queue (transaction_id, server_name, json_nid)" +
|
|
" VALUES ($1, $2, $3)"
|
|
|
|
const deleteQueueTransactionSQL = "" +
|
|
"DELETE FROM federationsender_queue WHERE server_name = $1 AND transaction_id = $2"
|
|
|
|
const selectQueueNextTransactionIDSQL = "" +
|
|
"SELECT transaction_id FROM federationsender_queue" +
|
|
" WHERE server_name = $1" +
|
|
" ORDER BY transaction_id ASC" +
|
|
" LIMIT 1"
|
|
|
|
const selectQueuePDUsByTransactionSQL = "" +
|
|
"SELECT json_nid FROM federationsender_queue" +
|
|
" WHERE server_name = $1 AND transaction_id = $2" +
|
|
" LIMIT 50"
|
|
|
|
type queueStatements struct {
|
|
insertQueueStmt *sql.Stmt
|
|
deleteQueueTransactionStmt *sql.Stmt
|
|
selectQueueNextTransactionIDStmt *sql.Stmt
|
|
selectQueuePDUsByTransactionStmt *sql.Stmt
|
|
}
|
|
|
|
func (s *queueStatements) prepare(db *sql.DB) (err error) {
|
|
_, err = db.Exec(queueSchema)
|
|
if err != nil {
|
|
return
|
|
}
|
|
if s.insertQueueStmt, err = db.Prepare(insertQueueSQL); err != nil {
|
|
return
|
|
}
|
|
if s.deleteQueueTransactionStmt, err = db.Prepare(deleteQueueTransactionSQL); err != nil {
|
|
return
|
|
}
|
|
if s.selectQueueNextTransactionIDStmt, err = db.Prepare(selectQueueNextTransactionIDSQL); err != nil {
|
|
return
|
|
}
|
|
if s.selectQueuePDUsByTransactionStmt, err = db.Prepare(selectQueuePDUsByTransactionSQL); err != nil {
|
|
return
|
|
}
|
|
return
|
|
}
|
|
|
|
func (s *queueStatements) insertQueuePDU(
|
|
ctx context.Context,
|
|
txn *sql.Tx,
|
|
transactionID gomatrixserverlib.TransactionID,
|
|
serverName gomatrixserverlib.ServerName,
|
|
nid int64,
|
|
) error {
|
|
stmt := sqlutil.TxStmt(txn, s.insertQueueStmt)
|
|
_, err := stmt.ExecContext(
|
|
ctx,
|
|
transactionID, // the transaction ID that we initially attempted
|
|
serverName, // destination server name
|
|
nid, // JSON blob NID
|
|
)
|
|
return err
|
|
}
|
|
|
|
func (s *queueStatements) deleteQueueTransaction(
|
|
ctx context.Context, txn *sql.Tx,
|
|
serverName gomatrixserverlib.ServerName,
|
|
transactionID gomatrixserverlib.TransactionID,
|
|
) error {
|
|
stmt := sqlutil.TxStmt(txn, s.deleteQueueTransactionStmt)
|
|
_, err := stmt.ExecContext(ctx, serverName, transactionID)
|
|
return err
|
|
}
|
|
|
|
func (s *queueStatements) selectQueueNextTransactionID(
|
|
ctx context.Context, txn *sql.Tx, serverName, sendType string,
|
|
) (string, error) {
|
|
var transactionID string
|
|
stmt := sqlutil.TxStmt(txn, s.selectQueueNextTransactionIDStmt)
|
|
err := stmt.QueryRowContext(ctx, serverName).Scan(&transactionID)
|
|
return transactionID, err
|
|
}
|
|
|
|
func (s *queueStatements) selectQueuePDUs(
|
|
ctx context.Context, txn *sql.Tx, serverName string, transactionID string, limit int,
|
|
) ([]int64, error) {
|
|
stmt := sqlutil.TxStmt(txn, s.selectQueuePDUsByTransactionStmt)
|
|
rows, err := stmt.QueryContext(ctx, serverName, transactionID)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer internal.CloseAndLogIfError(ctx, rows, "queueFromStmt: rows.close() failed")
|
|
var result []int64
|
|
for rows.Next() {
|
|
var nid int64
|
|
if err = rows.Scan(&nid); err != nil {
|
|
return nil, err
|
|
}
|
|
result = append(result, nid)
|
|
}
|
|
|
|
return result, rows.Err()
|
|
}
|